| Portsmouth Rhode Island Weather Almanac |
|
|
|
|
|
|
|
|
|
| Thursday,
September 2, 2021 |
|
|
|
|
|
|
|
|
|
| Cloudy, Heavy
Rain/Thunderstorms early, P. Cloudy Day to Clear PM, Windy, Remnants from
Hurricane Ida |
|
|
|
|
|
|
|
|
|
| |
|
Climate
Normal Period |
Climate Record Period |
|
|
|
|
|
|
|
|
| |
|
1991 -
2020 |
1893 - 2021 |
|
|
|
|
|
|
|
|
| |
|
September 2, 2021 |
|
Record |
|
Record |
|
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2021 |
|
2020 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
75 |
|
71 |
|
76 |
|
-1 |
|
93 |
|
in |
1953 |
|
63 |
|
in |
2003 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
58 |
|
63 |
|
61 |
|
-3 |
|
72 |
|
in |
1959 |
|
46 |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
67 |
|
67 |
|
69 |
|
-2 |
|
81 |
|
in |
1953 |
|
57 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Temperature |
|
73.0 |
|
74.5 |
|
76.5 |
|
-3.5 |
|
90.5 |
|
in |
1953 |
|
64.5 |
|
in |
1912 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Temperature |
|
60.5 |
|
61.0 |
|
61.5 |
|
-1.0 |
|
72.5 |
|
in |
1959 |
|
48.0 |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
| Month Average Temperature |
|
67.0 |
|
68.0 |
|
69.0 |
|
-2.0 |
|
80.5 |
|
in |
1898 |
|
58.0 |
|
in |
1912 |
|
|
|
|
|
|
|
|
|
| High Heat
Index |
|
75 |
|
74 |
|
77 |
|
-2 |
|
97 |
|
in |
1953 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Low Wind Chill |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#N/A |
|
in |
#N/A |
|
|
|
|
|
|
|
|
|
| HDD |
|
0 |
|
0 |
|
1 |
|
-1 |
|
8 |
|
in |
2017 |
|
0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Month HDD |
|
0 |
|
0 |
|
2 |
|
-2 |
|
14 |
|
in |
1912 |
|
0 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
| Season HDD |
|
9 |
|
0 |
|
9 |
|
+0 |
|
42 |
|
in |
1905 |
|
0 |
|
in |
2020 |
|
|
|
|
|
|
|
|
|
| CDD |
|
2 |
|
2 |
|
5 |
|
-3 |
|
16 |
|
in |
1953 |
|
0 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Month CDD |
|
4 |
|
6 |
|
10 |
|
-6 |
|
31 |
|
in |
1898 |
|
0 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Year CDD |
|
687 |
|
772 |
|
547 |
|
+140 |
|
772 |
|
in |
2020 |
|
266 |
|
in |
1902 |
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
63 |
|
71 |
|
66 |
|
-3 |
|
77 |
|
in |
2014 |
|
47 |
|
in |
1970 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
52 |
|
59 |
|
57 |
|
-5 |
|
71 |
|
in |
1959 |
|
35 |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
58 |
|
65 |
|
61 |
|
-3 |
|
74 |
|
in |
2014 |
|
43 |
|
in |
1967 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Dew Point |
|
65.5 |
|
68.0 |
|
66.0 |
|
-0.5 |
|
76.0 |
|
in |
2014 |
|
46.0 |
|
in |
1970 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Dew Point |
|
56.5 |
|
58.0 |
|
57.0 |
|
-0.5 |
|
71.5 |
|
in |
1959 |
|
34.5 |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
| Month Average Dew Point |
|
61.5 |
|
63.0 |
|
57.0 |
|
+4.5 |
|
73.5 |
|
in |
2014 |
|
42.0 |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
5.21 |
|
.31 |
|
.11 |
|
+5.10 |
|
5.21 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One Hour |
|
1.56 |
|
.10 |
|
|
|
|
|
1.56 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hourly Rate |
|
8.00 |
|
.28 |
|
|
|
|
|
8.00 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Precipitation |
|
6.45 |
|
.31 |
|
.22 |
|
+6.23 |
|
6.45 |
|
in |
2021 |
|
.00 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| Year Precipitation |
|
35.55 |
|
24.34 |
|
29.50 |
|
+6.05 |
|
45.30 |
|
in |
1998 |
|
16.54 |
|
in |
1957 |
|
|
|
|
|
|
|
|
|
| Snow |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
in |
#N/A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
#N/A |
|
#N/A |
|
|
|
|
|
#N/A |
|
in |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Snow |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
in |
#N/A |
|
#N/A |
|
in |
|
|
|
|
|
|
|
|
|
|
| Season Snow |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
in |
#N/A |
|
#N/A |
|
in |
#N/A |
|
|
|
|
|
|
|
|
|
| |
|
September
2, 2021 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2021 |
|
2020 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
100% |
|
99% |
|
92% |
|
+8% |
|
100% |
|
in |
2021 |
|
75% |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
56% |
|
84% |
|
59% |
|
-3% |
|
93% |
|
in |
1976 |
|
30% |
|
in |
1960 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
78% |
|
92% |
|
75% |
|
+3% |
|
97% |
|
in |
1976 |
|
55% |
|
in |
1970 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
29.93 |
|
30.13 |
|
30.10 |
|
-00.17 |
|
30.55 |
|
in |
1991 |
|
29.74 |
|
in |
1952 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
29.49 |
|
29.83 |
|
29.90 |
|
-00.41 |
|
30.23 |
|
in |
2009 |
|
29.49 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
29.71 |
|
29.98 |
|
30.00 |
|
-00.29 |
|
30.37 |
|
in |
1991 |
|
29.67 |
|
in |
1952 |
|
|
|
|
|
|
|
|
|
| Average Wind |
|
13.5 |
|
3.5 |
|
6.2 |
|
+7.3 |
|
16.1 |
|
in |
1996 |
|
1.6 |
|
in |
1955 |
|
|
|
|
|
|
|
|
|
| Direction |
|
NNW |
|
SSE |
|
SW |
|
|
|
N |
|
|
|
|
NE |
|
|
|
|
|
|
|
|
|
|
|
|
| High Wind Gust |
|
43 |
|
18 |
|
21 |
|
+22 |
|
46 |
|
in |
1996 |
|
10 |
|
in |
1955 |
|
|
|
|
|
|
|
|
|
| Direction |
|
NNE |
|
SW |
|
SW |
|
|
|
N |
|
|
|
|
NE |
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
74.1 |
|
68.7 |
|
70.8 |
|
+3.3 |
|
76.6 |
|
in |
2002 |
|
65.5 |
|
in |
2003 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
69.8 |
|
67.1 |
|
68.2 |
|
+1.6 |
|
74.1 |
|
in |
2010 |
|
64.9 |
|
in |
2003 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
72.0 |
|
67.9 |
|
69.5 |
|
+2.5 |
|
75.2 |
|
in |
2010 |
|
65.2 |
|
in |
2003 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
6:11:32 AM |
|
5:44:36 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
7:18:03 PM |
|
7:44:59 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
13:06:31 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
Fog, Thunderstorm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
Remnants from Hurricane Ida, Record breaking
rain |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For September 2, 2021 |
|
|
|
|
|
|
|
|
| Climate Weather for September 2 |
|
|
|
|
|
|
|
|
| Weather History For September 2 |
|
|
|
|
|
|
|
|
| Weather Calendar |
|
|
|
|
|
|
|
|
|
| Back
To Weather Stat Page |
|
|
|
|
|
|
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|